Machine for treating french binding work



May 22, 1934. T. c. ROWEN MACHINE FOR TREATING FRENCH BINDING WORK Filed June 17, 1932 3 Sheets-Sheet 1 //v VE/V TUE;

May 22, 1934. T. c. ROWEN MACHINE FOR TREATING FRENCH BINDINGWORK Filed June 1'7, 1932 3 Sheets-Sheet 2 //V VENTUEL m a. M-

May 22, v1934. T. c. ROWEN MACHINE FOR TREATING FRENCH BINDING WORK Filed June 17, 1932 3 Sheets-Sheet 3 Patented May 22, 1934 UNITED STATES PATENT OFFICIE MACHINE FOR TREATING FRENCH BINDING WORK Application June 17, 1932, Serial No. 617,799

6 Claims.

This invention relates to improvements in machines for treating French-binding work. The invention is herein illustrated as embodied in a machine for rubbing out or straightening a fabric French-binding strip attached to the marginal portion of a shoe upper. The illustrated machine is of the type shown in Letters Patent of the United States No. 1,790,901, granted February 3, 1931, on the application of John W. Cosgrove, deceased, and the object of the invention is to provide a still further improved machine of this type. v

The preparation of a French edge, upon shoe uppers, for example, involves the steps of stitching the binding strip to the edge of the upper, rubbing out or straightening the binding strip to extend beyond the edge of the upper, applying cement to the under surface of the binding strip and the upper, and folding the cemented strip over the edge of the upper. The present invention has to do with the step of straightening the binding strip which, in machines of the type shown in the Cosgrove patent, is effected by means of a wiper disk rotatable about a substantially horizontal axis and operating transversely of the edge of the work to contact rather firmly with the turned-back binding strip, thereby to rub it out forcibly enough so that it Will stay in extended relation and will facilitate the work of folding. In machines of the type shown in the Cosgrove patent, the piece of work is fed past the wiper disk by means of cooperating upper and lower feed rolls. An edge gage is provided for guiding the work to the machine and commonly this gage is set in such relation to the feed rolls that the edge of the upper feed r011 adjacent to the binding strip very slightly overlaps the curled over portion of the binding strip after the free or unattached portion has been straightened by the wiper disk. The relation of the axis of the wiper disk in the patented machine to the upper feed roll is such that it is approximately vertically above the edge of the upper material, which, for convenience, will be assumed to be made of leath er. This disk is of substantial size in proportion to the parts of the work to be treated and has a rather wide arc of contact with the-work. The arrangement of the machine permits the operator to adjust the heightwise position of the disk so as to get a more or less forcible contact with the binding strip in order effectively to straighten the latter.

In some instances the character of the work is such that an adjustment of the approach of the 1 wiper disk to the Work which gives the desired straightening effect may bring the Wiper disk into contact with the leather of the upper and, if the latter is of delicate material, it may scuff the leather at this point. Occasionally, for the sake of ornamentation, the shoe upper will have a nar- 50 row strip of upper material superimposed upon and attached to the display side of the upper closely adjacent to the binding strip and the contact of the wiper disk with the outer edge of this decorative strip is apt to rough it up and make it unsightly.

Accordingly, a feature of the invention permits the location of the arc of contact of the wiper disk withthe work to be varied transversely of the direction of feed of the work, to the end that contact of the wiper disk with the binding strip may be sufficiently-firm properly to accomplish the straightening of the binding strip without danger of damaging the ornamental strip or the upper material. In the illustrated machine, the location of this arc of contact may be varied by moving the wiper disk laterally, as by adjusting the supporting housing for the disk. As illustrated also, adjustment of the wiper disk does not interrupt or interfere with the driving connections thereof. A satisfactory relation of the wiper disk to the binding strip will frequently be obtained when the axis of the wiper disk is positioned in a plane substantially normal to the axis of the associated feed roll and beyond the edge of the upper material to which the strip is attached.

This and other features of the invention are described in the following specification taken in connection with the accompanying drawings, in which Fig. 1 is a front elevation;

Fig. 2 is a vertical transverse section on the line IIII of Fig. 1;

Fig. 3 is a partial end View, on a larger scale, of the work contacting elements and with parts broken away;

Fig. 4 is a front elevation on. a similar scale;

Fig. 5 is a horizontal section through the axis of the wiper disk; and

Fig. 6 is a diagrammatic view on a greatly enlarged scale showing a piece ofwork in transverse section and the relation of the feed rolls and the wiper disk to the same.

In presenting a piece of work to the machine, the edge of an upper piece 10, which may have an overlay or strap 13 attached thereto by stitching '11 and to which in turn the fabric binding strip 12 is attached by means of a row of stitches 14, is caught in the hooked portion 16 of an edge gage 18 and the binding strip turned out manually. To start the work in the machine it is passed under the rotating wiper disk 20 which, when brought into contact with the work, straightens the binding by a continual rubbing contact transversely of the edge of the upper material. The progress of the work is facilitated by a feed roll 22 cooperating with a work supporting roll 24. In the illustrated machine this work supporting roll 24 clips in cement contained in a receptacle 26 and hence, while feeding the work, also applies cement to the under side of the leather and to the under side of the outwardly extending binding strip 12 which is held down against it by means of a presser member 28. This presser, of narrow sheet material, is curved rearwardly at its lower end and is mounted on a slide 29 received in a groove in a yoke 102 (to be later described), which slide is urged downwardly by a spring (not shown) in the groove, and is held in place by a cover 31. The limit of downward movement is controlled by a foot 33 adapted to contact with a suitable surface formed on the upper edge of a filler piece 35 (Fig. 3) The tension of the spring may be regulated by a screw 37. This presser foot construction is not claimed herein since it forms the subject of a copending application of Sherman and Husler, Serial No. 606,686, filed April 21, 1932, and assigned to the same assignee as is this application.

If no cement is supplied to the receptacle 26, then the rolls 22 and 24 serve merely as feed rolls to drag the work underneath the rotating wiper disk 20. As in the patented machine, the supporting roll 24 is journaled in an outwardly extending rigid arm 30 which forms a part of the frame 32 of the machine, while the wiper disk 20 is supported at the outer end of an arm 34 (Fig. 2) and the feed roll at the outer end of another arm 36, which arms are mounted upon a common pivot 38 extending transversely from front to back in the frame of the machine so that the tools may be lifted away from or lowered into contact with the work. These arms are pressed toward the work by springs 40 in a bridge 41, and the limit of downwardmovement of the arms is determined by stop screws 42 also carried by said bridge. When a piece of work is presented to the machine, the operator brings the tools against the work by depressing a treadle (not shown) connected to a t'readle rod 44 secured at its upper end to a lever 46. This lever is pivoted at 48 in the frame 32 and has integral arms 50 and 52. The arm"52 is joined by a rod 54 to a yoke 56 loosely secured to the outer right hand end of the arm 36. On this arm 36 is an adjustable contact screw 58 mounted in an overhanging lip 60 to engage the lever 34, thereby enabling movement of the lever 36 to be communicated to the lever 34 to lift the wiper disk 20 and the feed roll 22 either simultaneously or in the desired sequence. The effective length of the connecting rod 54 may be altered by screwing it into or out of the yoke 56 and a similar yoke 62 on the lower end of the rod to a position which is maintained by lock nuts. The operating tools and their carrying arms are normally lifted out of contact with the work in opposition to the springs 40 by a spring 64 coiled around the rod 54 and hooked at its upper end to a bracket 66 which is slotted to engage a grooved collar 68 threaded on the rod 54 and held in adjusted position by a lock nut '70. The lower end of the spring is hooked to a stud on the upper end of a bracket 72 attached to the frame of the machine by a screw '74. The tension of this spring 64 is adjusted just to overcome the springs 40 so that the operator, in lowering the tools into contact with the work, has only to overcome the difference in the strength of these springs. When the treadle is fully depressed, the slot 76 in the yoke 56 at the upper end of the rod 54 will free the tool carrying arms 34 and 36 from the effect of the spring 64 and the tools will then be maintained in contact with the work under the force of the springs 40. The limit of movement of the tools away from the work is determined by a stop screw 78 engaging the upper side of the treadle lever 46.

The moving parts of the machine are driven by means of power supplied to a driving pulley 80 loosely mounted on a stud shaft 82 and connected through a friction clutch 84 to a drive pinion 86 (Fig. 2). When the treadle is depressed, the upright arm 50 on the treadle lever pushes the clutch parts into driving engagement. The pinion 86 meshes with an intermediate gear 88 which transmits movement, to a pinion 90 on the righthand end of a shaft 92 which is journaled in the arm 36 and rotates the feed roll 22. The pinion 90 meshes with another pinion 94 pinned to the right-hand end of a shaft 96 which is journaled in the arm 34 and is arranged to rotate the wiper disk 20. A cover 97 protects the operator from injury by contact with these driving elements. The intermediate gear 88 is connected through an extensible shaft 98 to the cement roll 24. Provision is made for supplying cement to the receptacle 26 when desired from a barometric feed tank 100.

The feed roll 22 is pinned to a short horizontal shaft journaled in the lower ends of the arms of a yoke 102 secured by screws 104 to the arm 36, and the feed roll is maintained in contact with the inner faceof the outer arm of the yoke 102 by means of a screw 106. It is on this yoke that there is slidably mounted the slide 29 for the presser 28 which holds the fabric strip in contact with the cement roll. The feed roll 22 and the presser 28 have a fixed relation to the cement roll 24 transversely of the edge of the upper material and the gage 18 may be adjusted to present the work in the best relation to these parts. It will be noted from the diagram in Fig. 6 that the presser 28 contacts with the binding strip 12 just beyond the leather 10 so as to bring as much as possible of the fabric strip into contact with the supporting surface of the cement roll 24.

As noted above, provision has been made for adjusting the position of the axis of the wiper disk 20 from a left-hand position when it is substantially vertically above the outer edge of the upper material (including the ornamental strip 14 if such a strip is present), at which time the circumference of the acting face of the toothed wiper disk is represented in the diagram (Fig. 6) by an are 108 drawn about a center A. If this produces unnecessarily harsh contact with the upper material, or if, because of the presence of a decorative strip 13 attached to the work piece, its contact is harmful, then it may be adjusted to various positions such as the one which is represented by the arc 110 in the diagram, thereby to vary the angular relation between the appreaching part of the periphery of the disk and the face of the work. It will be noted that this are has been drawn about a center B slightly lower than the center ofthe arc 108. This indi cates merely that in this right-hand position it will be necessary to adjust the stop screw 42 to allow the wiper disk supporting arm 34-to drop to a slightly lower position in order to secure adequate contact of the wiper disk with the work.

The structure by means of which this adjustment is secured is illustrated in Figs. 3, 4 and 5, and from these figures it will be seen that the outer end of the arm 34 is hollowed to receive a slidably mounted yoke 112 in which is journaled the stub shaft 114 upon which the wiper disk 20 is mounted by means of a bayonet joint and is held by a screw 116. To this stub shaft 114 is secured a beveled gear 118 meshing with a similar gear 120 pinned to the left-hand end of the shaft 96. The hub of this gear is provided with a groove 122 to receive a forked extension 124 of the yoke 112. Accordingly, as the yoke 112 is moved laterally, the shaft 96 will slide and the gears 118 and 120 will be maintained in proper meshing engagement. An end cover 126 is provided for the recessed end of the arm 34 and this cover has an inwardly extending lip 128 adapted to snap over a pin 130 on the bottom of the arm and is held on the arm by screws 132. As the yoke is adjusted to vary the position of the wiper disk on the arm 34, it carries with it the shaft 96 but the width of the driving pinions 90 and 94 is such, as shown in Fig. 4, that they are not thrown out of proper driving engagement. The gear 94 on the end of the shaft 96 is so positioned with respect to the bearings that there is room for this sliding movement of the shaft (Fig. 1). After the yoke 112 has been adjusted, it is held in adjusted position by a clamp screw 134 passing through a slot 135 in the rear side of the arm 34. As in the patented machine, the upper periphery of the wiper disk is kept clean by a felt wiper 136 carried upon the outer end of an arm 138 secured to the arm 34. At the point of contact of the wiper disk with the work, the work is bridged between a thin plate 140 secured to the outer end of the gage and overlying part of the upper surface of the cement roll 24. In this position the teeth of thewiper disk 20 depress the folded over portion of the binding strip 12 and the edge of the work piece 10 slightly below the diagrammatic position shown in Fig. 6, the degree of contact between the two being susceptible of control by adjustment of the stop screw 42. By this means and by adjustment of the position of the wiper disk carrying yoke 112, the disk may be arranged to act upon the binding to the best ad vantage without damaging the work. The selected position will depend upon the character of the work and the amount of force which is necessary in order to secure perfect wiping-out of the binding strip 12.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for treating French binding work, means for supporting and feeding a piece of work comprising upper material to which a binding strip has been attached, a wiper disk rotatable in a path the plane of which is transverse to the edge of the upper material and having an arc of contact with the work, and means for adjusting the disk with respect to the feeding means to vary the location of the arc of contact in a direction transverse to the edge of the work.

2. In a machine for treating French binding work, means for supporting and feeding a piece of work comprising upper material to which a binding strip has been attached, a supporting arm, a rotatable wiper disk adjustable thereon transversely of the direction of feed movement of the work to vary the arc of contact of the periphery of the disk with the work, means for driving said disk for rotation transversely of the binding strip to straighten the same, and means for securing said disk in adjusted position.

3. In a machine for treating French binding work, means for supporting and feeding a piece of work comprising upper material to which a binding strip has been attached, a wiper disk, means adjustably mounted on the machine for supporting said disk for rotation transversely of the binding strip, and means for driving said disk, said disk supporting means permitting adjustment of the position of the wiper disk in a direotion transverse to the edge of the work without interrupting the driving means.

4. In a machine for treating French binding work comprising upper material to which a binding strip has been attached, a supporting roll, a feed roll and a wiper disk cooperating with the supporting roll and mounted upon pivoted arms for engagement with the upper side of the work thereby to effect a feeding of the work and a wiping out of the binding strip, means for adjustably mounting said wiper disk upon one of said arms, and means for rotating said disk and said rolls.

5. In a machine for treating French binding work, means for supporting a piece of work comprising upper material to which a binding strip has been attached, a feed roll cooperating with said supporting means and engaging the upper side of said strip adjacent to the edge of the upper material, and a wiper disk operating transversely upon the binding strip and having its axis positioned in a plane substantially normal to the axis of the feed roll and beyond the edge of the material to which the strip is attached.

6. In a machine for treating French binding work, means for supporting a piece of upper material to which a binding strip has been attached, a driven wiper disk mounted for peripheral engagement with and rotation in a path transverse to the edge of the work to straighten the binding strip, a driven feed roll cooperating with said supporting means to grip the work and move it past the wiper disk, pivoted arms for supporting said wiper disk and said feed roll, means carried by said arms for driving said disk and feed roll, and means for adjustably securing the wiper disk to its arm in various positions transverse- 1y of the edge of the work so that the angular relation between the approaching periphery of the wiper disk and the face of the work may be varied.

THOMAS C. ROWEN. 

